Hex #5bd1b0 or rgb(91,209,176) in RGB space is the tint of greenish cian. It has hue angle of 163.22 degrees, value = 82 and saturation = 56. #5bd1b0 can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of cyan, 4 drops of green, 4 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #5bd1b0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bd1b0 to the mixer and play with it.